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Finding the Fourth Proportional to 8,914.10, 13,363.85 and 3,364.28

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Solution

The fourth proportional to 8,914.10, 13,363.85 and 3,364.28 is: 5,043.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.10 : 13,363.85 = 3,364.28 : x
  2. Step 2: Convert to fraction form
    8,914.10/13,363.85 = 3,364.28/x
  3. Step 3: Cross multiply
    8,914.10x = 13,363.85 × 3,364.28
  4. Step 4: Simplify right side
    8,914.10x = 44,959,724.98
  5. Step 5: Solve for x
    x = 44,959,724.98/8,914.10
  6. Step 6: Final answer
    x = 5,043.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.